British Labour Party leader Jeremy Corbyn has lost a confidence vote among the party's lawmakers.

The vote is non-binding and so far Corbyn has indicated he won't step down as head of the main opposition party.

He has lost much of his support in the parliamentary ranks of the Labour Party after Britain voted to leave the European Union last week, but claims he still has support in the party's rank and file.

British media reported 172 lawmakers voted against Corbyn while 40 voted in his favor.

Key members have called for Corbyn to step down.